US 12,624,425 B2 · Alloy material, alloy product formed of alloy material, and mechanical device including alloy product

Abstract

Provided is an alloy material in which coarse growth or aggregation and precipitation of an undesired intermetallic compound phase can be suppressed, an alloy product formed of the alloy material, and a mechanical device including the alloy product. The alloy material according to the present invention includes: 5 at % or more and 40 at % or less of each of Co, Cr, Fe, and Ni; more than 0 at % and 8 at % or less of Mo; 1 at % or more and less than 8 at % of Ti; more than 0 at % and 4 at % or less of at least one kind of Ta or Nb; and a remainder consisting of unavoidable impurities, in which a total content of Ti and the at least one kind of Ta or Nb is 3 at % or more and 8 at % or less. In the alloy product formed of the alloy material, a total occupancy of η phase and Laves phase precipitates having a size of 1 μm or more is suppressed to be 5 area % or less.

Claims7

Dependent claims

An alloy material consisting of:

25 at % or more and 38 at % or less of Co;
16 at % or more and 23 at % or less of Cr;
12 at % or more and 20 at % or less of Fe;
17 at % or more and 28 at % or less of Ni;
1 at % or more and 7 at % or less of Mo;
1 at % or more and 4.5 at % or less of Ti;
0.5 at % or more and 4 at % or less of Ta;
0 at % or more and 4 at % or less of Nb;
and
a remainder being unavoidable impurities,
wherein a total content of Ti, Ta, and Nb is 3 at % or more and 8 at % or less.

8 more elements

Dependencies are inferred from the claim text.

Alloy material, alloy product formed of alloy material, and mechanical device including alloy product

Life of this patent

Alloy material, alloy product formed of alloy material, and mechanical device including alloy product

Life of this patent

Abstract

Claims7